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In this Nov. 20, 2012 photo, a child swings from a tree atop a hill along the Atlanta BeltLine in Atlanta. Since an Atlanta nonprofit opened a 2.25-mile-long paved trail east of downtown last month, it has attracted a steady stream of joggers, dog-walkers and cyclists to take in spectacular views of the skyline as well as a slice of established neighborhoods that were once only seen by riding a freight train. The Eastside Trail is the latest and most visible phase of the Atlanta BeltLine, an ambitious $2.8 billion plan to transform a 22-mile railroad corridor that encircles Atlanta into a network of parks, trails, public art, affordable homes and ultimately streetcars. (AP Photo/David Goldman)

In this Nov. 20, 2012 photo, a child swings from a tree atop a hill along the Atlanta BeltLine in Atlanta. Since an Atlanta nonprofit opened a 2.25-mile-long paved trail east of downtown last month, it has attracted a steady stream of joggers, dog-walkers and cyclists to take in spectacular views of the skyline as well as a slice of established neighborhoods that were once only seen by riding a freight train. The Eastside Trail is the latest and most visible phase of the Atlanta BeltLine, an ambitious $2.8 billion plan to transform a 22-mile railroad corridor that encircles Atlanta into a network of parks, trails, public art, affordable homes and ultimately streetcars. (AP Photo/David Goldman)